LCONV= logit change at convergence = .005

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Measures are only reported to 2 decimal places, so a change of less than .005 logits will probably make no visible difference.

 

Specifies what value the largest change in any logit estimate for a person measure or item calibration or rating (or partial credit) scale structure calibration must be less than, in the iteration just completed, for iteration to cease. The current largest value is listed in Table 0 and displayed on your screen. See convergence considerations.

 

The standard setting is CONVERGE="E", so that iteration stops when either LCONV= or RCONV= is satisfied. (Note: this depends on Winsteps version - and may explain differences in converged values.)

 

Example 1: To set the maximum change at convergence to be less or equal to .001 logits:

LCONV=.001

RCONV=0 ; set to zero, so does not affect convergence decision

CONVERGE=Logit

 

Example 2: To set the maximum change at convergence to less or equal to .1 user-scale USCALE= units:

USCALE = 50

; 50 user-scaled units per logit

LCONV = .002

; logit value = .002*50 = 0.1 user-scaled units


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